diff options
Diffstat (limited to 'src/kernel')
| -rw-r--r-- | src/kernel/pagemgr.C | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/kernel/pagemgr.C b/src/kernel/pagemgr.C index bdc8244f2..978c6b9d2 100644 --- a/src/kernel/pagemgr.C +++ b/src/kernel/pagemgr.C @@ -5,7 +5,7 @@ /* */ /* OpenPOWER HostBoot Project */ /* */ -/* Contributors Listed Below - COPYRIGHT 2010,2017 */ +/* Contributors Listed Below - COPYRIGHT 2010,2018 */ /* [+] International Business Machines Corp. */ /* */ /* */ @@ -155,6 +155,7 @@ void* PageManager::allocatePage(size_t n, bool userspace) // In non-kernel mode, make a system-call to allocate in kernel-mode. if (!KernelMisc::in_kernel_mode()) { + size_t attempts = 0; while (NULL == page) { page = _syscall1(Systemcalls::MM_ALLOC_PAGES, @@ -164,6 +165,12 @@ void* PageManager::allocatePage(size_t n, bool userspace) // will eventually free up (ex. VMM flushes). if (NULL == page) { + attempts++; + if( attempts == 10000 ) //arbitrarily huge number + { + printk("Cannot allocate %ld pages\n", n); + MAGIC_INSTRUCTION(MAGIC_BREAK_ON_ERROR); + } task_yield(); } } |
